class_docstr: Data structure to store a particular path between 2 nodes.
code: def is_blocked(self):
      return self._is_blocked
  
imports: import networkx
  from dowhy.utils.graph_operations import adjacency_matrix_to_adjacency_list
label_desc: Use image node_id 3 for calling the Path obj's underlying member method code with example usage: obj.is_blocked() and returns: self